大大香蕉一本道国产av视频一本道久久综合 大香蕉网伊人在线75大香蕉伊人港澳办主任:止暴制乱恢复秩序是香港最急迫的任务

We are responsible for global coordination of the Internet Protocol addressing systems, as well as the Autonomous System Numbers used for routing Internet traffic.

Currently there are two types of Internet Protocol (IP) addresses in active use: IP version 4 (IPv4) and IP version 6 (IPv6). IPv4 was initially deployed on 1 January 1983 and is still the most commonly used version. IPv4 addresses are 32-bit numbers often expressed as 4 octets in “dotted decimal” notation (for example, 192.0.2.53). Deployment of the IPv6 protocol began in 1999. IPv6 addresses are 128-bit numbers and are conventionally expressed using hexadecimal strings (for example, 2001:0db8:582:ae33::29).

Both IPv4 and IPv6 addresses are generally assigned in a hierarchical manner. Users are assigned IP addresses by Internet service providers (ISPs). ISPs obtain allocations of IP addresses from a local Internet registry (LIR) or National Internet Registry (NIR), or from their appropriate Regional Internet Registry (RIR):

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  “你穿?”甦稚又問了一句。   何愁有嘿嘿笑道︰“張良難道沒有學問?沒本事?他唯一的漏洞就是以為隔了十三年,劉邦早就忘記了黃石公,結果,劉邦沒忘,他只好匆匆的準備一塊黃石頭蒙混。否則,以他的智慧跟手段,想要蒙蔽天下人,手段多得是!”大大香蕉一本道国产av视频   “梆梆梆……”一本道久久综合 大香蕉网伊人在线75   何愁有呆滯了一會,一把拉住雲瑯道︰“你知道軍伍上的事情老夫不奇怪,老夫只是奇怪你為什麼連這麼生僻的事情也知道?你是羌人?”   在這個過程中,仇人的面孔逐漸淡去,包括那個要強拆孤兒院的家伙,也忘記了自己想要阻止強拆,沖上去跟那個人撕打,然後身上被踩上無數只腳的感覺。大香蕉伊人   這樣的感覺他以前在驪山的時候有過,那一次,他從始皇陵里死里逃生,卻不知道今日會不會重現昔日的運氣。
Map of RIRs
RegistryArea Covered
AFRINICAfrica Region
APNICAsia/Pacific Region
ARINCanada, USA, and some Caribbean Islands
LACNICLatin America and some Caribbean Islands
RIPE NCCEurope, the Middle East, and Central Asia

Our primary role for IP addresses is to allocate pools of unallocated addresses to the RIRs according to their needs as described by global policy and to document protocol assignments made by the IETF. When an RIR requires more IP addresses for allocation or assignment within its region, we make an additional allocation to the RIR. We do not make allocations directly to ISPs or end users except in specific circumstances, such as allocations of multicast addresses or other protocol specific needs.

IP Address Allocations

Internet Protocol Version 4 (IPv4)

Internet Protocol Version 6 (IPv6)

Autonomous System Number Allocations

Procedures

Regional Internet Registry Creation

Technical Documentation